1 files changed, 1 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index 0638e00..628442e 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@ setup(
         'websockets',
         'aiohttp',
         'PyYAML',
-        'yarl',
+        'yarl>=1.4,<1.5',
         'multidict',
     ],
     extras_require={